diff --git a/plugins/aws/fix_plugin_aws/resource/base.py b/plugins/aws/fix_plugin_aws/resource/base.py
index 1c3f92357..93b1064cb 100644
--- a/plugins/aws/fix_plugin_aws/resource/base.py
+++ b/plugins/aws/fix_plugin_aws/resource/base.py
@@ -29,7 +29,6 @@
     Cloud,
     EdgeType,
     Finding,
-    Assessment,
     ModelReference,
     PhantomBaseResource,
     BaseOrganizationalRoot,
@@ -478,8 +477,8 @@ def __init__(
         self.last_run_started_at = last_run_started_at
         self.created_at = utc()
         self.__builder_cache = {region.safe_name: self}
-        self._assessment_findings: Dict[AssessmentKey, ResourceFindings] = assessment_findings or defaultdict(
-            lambda: defaultdict(list)
+        self._assessment_findings = (
+            assessment_findings if assessment_findings is not None else defaultdict(lambda: defaultdict(list))
         )
 
         if last_run_started_at:
diff --git a/plugins/aws/fix_plugin_aws/resource/inspector.py b/plugins/aws/fix_plugin_aws/resource/inspector.py
index ec81854d9..9dc76062d 100644
--- a/plugins/aws/fix_plugin_aws/resource/inspector.py
+++ b/plugins/aws/fix_plugin_aws/resource/inspector.py
@@ -6,10 +6,7 @@
 from boto3.exceptions import Boto3Error
 
 from fix_plugin_aws.resource.base import AwsResource, AwsApiSpec, GraphBuilder
-from fix_plugin_aws.resource.ec2 import AwsEc2Instance
-from fix_plugin_aws.resource.ecr import AwsEcrRepository
-from fix_plugin_aws.resource.lambda_ import AwsLambdaFunction
-from fixlib.baseresources import Assessment, ModelReference, PhantomBaseResource, Severity, Finding
+from fixlib.baseresources import Assessment, PhantomBaseResource, Severity, Finding
 from fixlib.types import Json
 from fixlib.json_bender import Bender, S, ForallBend, Bend, F
 
@@ -345,9 +342,6 @@ class AwsInspectorFinding(AwsResource, PhantomBaseResource):
     _kind_service: ClassVar[str] = service_name
     _metadata: ClassVar[Dict[str, Any]] = {"icon": "log", "group": "management"}
     _docs_url: ClassVar[str] = "https://docs.aws.amazon.com/inspector/latest/user/findings-understanding.html"
-    _reference_kinds: ClassVar[ModelReference] = {
-        "successors": {"default": [AwsEc2Instance.kind, AwsEcrRepository.kind, AwsLambdaFunction.kind]},
-    }
     _aws_metadata: ClassVar[Dict[str, Any]] = {
         "provider_link_tpl": "https://{region_id}.console.aws.amazon.com/inspector/v2/home?region={region_id}#/findings/all",
     }
@@ -454,6 +448,11 @@ def collect_resources(cls, builder: GraphBuilder) -> None:
         def check_type_and_adjust_id(
             class_type: Optional[str], class_id: Optional[str]
         ) -> Tuple[Optional[str], Optional[str]]:
+            # to avoid circular import, defined here
+            from fix_plugin_aws.resource.ec2 import AwsEc2Instance
+            from fix_plugin_aws.resource.ecr import AwsEcrRepository
+            from fix_plugin_aws.resource.lambda_ import AwsLambdaFunction
+
             if not class_id or not class_type:
                 return None, None
             match class_type: